Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1987-07-15
1989-08-29
Gonzalez, Frank
Optics: measuring and testing
Range or remote distance finding
With photodetection
350 9615, 356352, G02B 610
Patent
active
048611360
ABSTRACT:
This invention is a new type of Fabry-Perot cavity, and an optical communication system using such a cavity. The inventive Fabry-Perot cavity comprises both a waveguiding portion and a nonwaveguiding portion. In this manner, tunable cavities of desirable mid-range length, necessary to obtain required free spectral ranges, may be fabricated with minimal diffraction losses otherwise associated with cavities of such length. The cavity length may be varied using, for example, piezoelectric elements, and the various cavity elements may be aligned and connected, using fiber connector technology.
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Stone Julian
Stulz Lawrence W.
American Telephone and Telegraph Company
AT&T Bell Laboratories
Dworetsky Samuel H.
Gonzalez Frank
Ngo John
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